79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
|
#if !defined(MATRIX4_INC)
|
||
|
|
#define MATRIX4_INC
|
||
|
|
|
||
|
|
#include "vect3.h"
|
||
|
|
#include <math.h>
|
||
|
|
#include <memory.h>
|
||
|
|
|
||
|
|
#pragma warning( disable : 4244)
|
||
|
|
extern const float Pi;
|
||
|
|
extern const float Half_Pi;
|
||
|
|
|
||
|
|
|
||
|
|
#define MATFLAG_IDENTITY (1)
|
||
|
|
class Matrix4
|
||
|
|
{
|
||
|
|
float m[4][4];
|
||
|
|
int flags;
|
||
|
|
public:
|
||
|
|
Matrix4() {flags=0;}
|
||
|
|
Matrix4(const Matrix4 &o);
|
||
|
|
float* operator[](int i) {return m[i];flags=0;}
|
||
|
|
const float* operator[](int i) const {return m[i];}
|
||
|
|
void SetElem(int r,int c,float v) {m[r][c]=v;flags=0;}
|
||
|
|
const float &Elem(int r,int c) const {return m[r][c];}
|
||
|
|
void SetFromMem(const float *mem) {memcpy(m,mem,sizeof(float)*16);CalcFlags();}
|
||
|
|
void GetFromMem(float *mem) const {memcpy(mem,m,sizeof(float)*16);}
|
||
|
|
void Identity();
|
||
|
|
void Zero();
|
||
|
|
int CalcFlags();
|
||
|
|
int GetFlags() const {return flags;}
|
||
|
|
bool IntegrityCheck() const;
|
||
|
|
void Translate(const float tx,const float ty,const float tz);
|
||
|
|
void Translate(const Vect3 &t);
|
||
|
|
void Rotate(int axis,const float theta);
|
||
|
|
void Rotate(const float rx,const float ry,const float rz);
|
||
|
|
void Rotate(const Vect3 v);
|
||
|
|
void Scale(const float sx,const float sy,const float sz);
|
||
|
|
void Scale(const float sx);
|
||
|
|
void Concat(const Matrix4 &m1,const Matrix4 &m2);
|
||
|
|
void Interp(const Matrix4 &m1,float s1,const Matrix4 &m2,float s2);
|
||
|
|
void Interp(const Matrix4 &m1,const Matrix4 &m2,float s1);
|
||
|
|
void XFormPoint(Vect3 &dest,const Vect3 &src) const;
|
||
|
|
float HXFormPoint(Vect3 &dest,const Vect3 &src) const;
|
||
|
|
void HXFormPointND(float *dest,const float *src) const;
|
||
|
|
void XFormVect(Vect3 &dest,const Vect3 &src) const;
|
||
|
|
void XFormVectTranspose(Vect3 &dest,const Vect3 &src) const;
|
||
|
|
void SetRow(int i,const Vect3 &t);
|
||
|
|
void SetColumn(int i,const Vect3 &t);
|
||
|
|
void SetRow(int i);
|
||
|
|
void SetColumn(int i);
|
||
|
|
void SetFromDouble(double *d);
|
||
|
|
void MultiplyColumn(int i,float f);
|
||
|
|
float GetColumnLen(int i);
|
||
|
|
void Inverse(const Matrix4 &old);
|
||
|
|
void OrthoNormalInverse(const Matrix4 &old);
|
||
|
|
void FindFromPoints(const Vect3 base1[4],const Vect3 base2[4]);
|
||
|
|
void MakeEquiscalar();
|
||
|
|
float Det();
|
||
|
|
float MaxAbsElement();
|
||
|
|
void GetRow(int r,Vect3 &v) const {v.x()=m[r][0];v.y()=m[r][1];v.z()=m[r][2];}
|
||
|
|
void GetColumn(int r,Vect3 &v) const {v.x()=m[0][r];v.y()=m[1][r];v.z()=m[2][r];}
|
||
|
|
void Transpose();
|
||
|
|
bool operator== (const Matrix4& t) const;
|
||
|
|
void From3x4(const float mat[3][4]);
|
||
|
|
void To3x4(float mat[3][4]) const;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
int GetTextureSystem(
|
||
|
|
const Vect3 &p0,const Vect3 &uv0, //vertex 0
|
||
|
|
const Vect3 &p1,const Vect3 &uv1, //vertex 1
|
||
|
|
const Vect3 &p2,const Vect3 &uv2, //vertex 2
|
||
|
|
const Vect3 &n, // normal vector for triangle
|
||
|
|
Vect3 &M, // returned gradient wrt u
|
||
|
|
Vect3 &N, // returned gradient wrt v
|
||
|
|
Vect3 &P); // returned location in world space where u=v=0
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|